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Finding the Fourth Proportional to 92,874.66, 128,168.52 and 52,587.35

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Solution

The fourth proportional to 92,874.66, 128,168.52 and 52,587.35 is: 72,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874.66 : 128,168.52 = 52,587.35 : x
  2. Step 2: Convert to fraction form
    92,874.66/128,168.52 = 52,587.35/x
  3. Step 3: Cross multiply
    92,874.66x = 128,168.52 × 52,587.35
  4. Step 4: Simplify right side
    92,874.66x = 6,740,042,820.22
  5. Step 5: Solve for x
    x = 6,740,042,820.22/92,874.66
  6. Step 6: Final answer
    x = 72,571.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.